Evergreen Your Home
With Maine’s Comfort & Efficiency Experts

BOOK YOUR FREE CONSULT

Evergreen Your Home
With Maine’s Comfort & Efficiency Experts

BOOK YOUR FREE CONSULT

Creating a Comfortable Nest for Baby

How Clare & Tim Upgraded Their Comfort with New Attic…

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From Damp to Dry: A Westbrook Basement Transformed

Basement Waterproofing in Westbrook, Maine: Heather’s Project with Evergreen Home…

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couple smiling in front of their white house

From Cold and Leaky to Warm and Efficient

How Jay and Rebecca Prioritized Comfort, Efficiency, and Their Home’s…

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Linda and Sam standing together in their garden, smiling in front of their home after completing an exterior home improvement project

A Warm, Comfortable Home, Ten Years On

How Sam and Linda Transformed Their Maine Home with Upgraded…

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insulation

Hidden insulation problems in a newer Belfast home

How a Belfast homeowner uncovered attic insulation issues and saved…

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Warming up a cold home office addition in Gray, Maine

“It’s cozy. I feel much more comfortable.” – Susan, homeowner…

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Our Services

Energy Audits

Energy Audits

Find out once and for all what’s creating issues in your home and create a roadmap to better comfort, health, and energy efficiency.

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Insulation

Insulation

Warm in winter, cool in summer, efficient all year long—upgrade your home’s insulation where it matters most for real, lasting comfort.

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Basement Waterproofing

Basement Waterproofing

Keep moisture out of your home for good with healthy, radon-safe solutions, including waterproofing and encapsulation.

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Rebates, Incentives & Financing

Rebates & Financing

Save thousands in Efficiency Maine rebates and other incentives. Then finance the balance with flexible, affordable loan options.

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Evergreen Home Performance: Maine’s Energy Audit, Insulation & Basement Waterproofing Experts

  • A local Maine business with almost 2 decades of experience
  • 4,500 Maine homes improved across nearly 200 communities
  • The leading contractor for Efficiency Maine insulation rebates
  • More BPI-certified staff than any other Maine business

Since 2006, we’ve worked with thousands of homeowners from Portland to Rockland and throughout Southern and Coastal Maine to make lasting improvements—using building science and a deep knowledge of how Maine homes work. When you’re ready to make your home more comfortable, healthy, and efficient—we’re here to listen… and guide you on your journey.

LEARN MORE ABOUT EVERGREEN

Available Now: Record-High Incentives

  • Up to $8,000 in Efficiency Maine rebates
  • Financing as low as $50 a month

This is as good as we’ve ever seen it here in Maine, and we can’t guarantee it will be around for long—don’t miss out on this once-in-a-lifetime opportunity!

LEARN MORE ABOUT INCENTIVES

Since 2006, We’ve Helped Thousands Of Maine Homeowners With Insulation And Basement Waterproofing

service area map - southern and coastal maine

Our Latest Articles

Twenty years of Evergreen Home Performance

If you’ve noticed foggy windows, musty closets, or cold rooms …

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What to do if your basement floods after heavy rain

If you found water in your basement after a storm, this guide covers what to do right now, why it…

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How much does it cost to fix a wet basement in Maine?

If you’ve noticed foggy windows, musty closets, or cold rooms …

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Don’t wait—book your free consult now and lock in today’s record-high rebates.

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Evergreen is the "go-to" company for improving the efficiency of your home. There are others to choose from but none so effective, honest, and capable as Evergreen. They did a great quantity of dense packing cellulose to improve our home (both for energy efficiency and for sound insulation) and it was totally successful. They are on-time, helpful, and caring. They clean up to a level that can't be over emphasized. This was the second time we employed them and we'd use them again if the opportunity came. You'll not be sorry to select Evergreen.

Dirk F.

Belfast

Evergreen did a fantastic job replacing 28 windows in our house. They were friendly, courteous, and very detail oriented. Brian did a great job planning, estimating and executing the project. Our energy use has dropped significantly since the work was done.

Alex B.

Kittery

Highly recommended. Our heating usage is now less than half what it was before we had our roof insulated. Evergreen was knowledgeable, friendly, and left no trace they were ever in our house. Not only is our heating bill much lower now, but our home is generally more comfortable year-round with less temperature fluctuations. Money well spent.

RC Lations

We are so pleased with the work the team from Evergreen Home Performance did in our home. The project included encapsulation of our basement with a reinforced vapor barrier, installation of a sump pump, spray foam insulation on the walls and insulation of the heating duct work. Everyone at Evergreen was friendly and professional. The project was completed on time and in budget. Our home is much cozier and warmer since the project was completed.

Linda Metzger

First we have Evergreen do a BIG project worth about $20K (windows, basement, insulate & rebuild an entire wall, a door, attics, and air sealing). They were so great we had them come back later when we decided we did want to do our other door. They are professional and do great work. They take care of your home and are trustworthy, and on top of all that friendly! I highly recommend you call them!

Garreth C Debiegun

Evergreen has just completed Phase 2 of 2 at my home. They are professional, hard-working and courteous. They communicate well..no surprises. They've gone above and beyond to make my home comfortable and were very respectful of my home.I recommend them unequivocally!!!Many thanks to Brian, Brian, Rick, Eddie, Dawson and the rest of the Evergreen crew!!

David Henry Feldman

I had gotten estimates from several other companies, but Evergreen was in another league entirely with their professionalism. If you want the job done correctly, I couldn't recommend this company enough.

Rayna Mayo

Freeport

Great team!

George S.

Bath

We initially contacted Evergreen through Efficiency Maine for an energy audit, which was conducted promptly and professionally by Justin McEdward, one of their Energy Advisors who is BPI-certified. After a thorough inspection of our newly purchased home, Justin explained in great detail what we needed and did not need. It was agreed that Evergreen would remove all of the existing attic insulation, which was not adequate, and replace it with blown in cellulose, to a rating of R-60.

Thomas W.

Scarborough

Thorough, smart, informative, integrated, and communicative -- that's how my experience was with Evergreen even with the covid interruption midstream. The team picked up where they left off, insulated basement and air sealed attic and knee wall in 100' temps under the eaves! This business group was a pleasure to work with.

Karen W.

Gray

Nothing but good things to say. The guys that came and did the actual work were extremely nice and did a great job. The energy audit was thorough and I was presented with multiple improvement options, I was even given ideas for improvement that Evergreen didn't offer. I never felt like I was being "sold".

Ryan Adams

We absolutely loved our experience with Evergreen. The team was incredibly kind, professional and great to work with. We're very impressed with the quality of work of the Evergreen team and how easy they made everything! Our house had barely any insulation ahead of this project and the results are amazing. Insulating the attic, walls and basement with Evergreen allowed us to tear a 50-year-old furnace, ductwork and oil tank out of the basement and now heat the home with new heat pumps. Evergreen also added 100 sq ft of clean, new storage space to the attic!

Nick S.

South Portland

We needed basement encapsulation to stop moisture coming up into the house from our regularly flooding basement. We had mold growing on windowsills and furniture. All the staff were friendly, respectful of our home, and easy to work with. Humidity has gone from 70% down to 40% and mold has not grown back after two months. Very grateful.

Sarah C.

Belfast

From start to finish, our experience was incredible. Justin was extremely helpful. The crew was fast, friendly, and efficient. And most importantly, our home is WAY warmer and our heating is less costly. I'd highly recommend evergreen to anyone looking to upgrade their home!

John S.

South Portland

I used to spend winters in the bathtub because my house was so cold. This was my first winter roaming around my whole house comfortably. This even led me to decorate a little. My heating oil usage has been reduced by over a quarter: I rarely have to boost the thermostat because the temp stays at a constant. The Efficiency Maine rebates, together with the energy savings, make it affordable for me to pay for the loan I took out to finance the project. I do not worry about my pipes freezing.

Claire Helene Bevan

Camden

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Portland Buy Local
Efficiency Maine
EPA Lead-Safe Certified
Building Performance Association
BPI Certified

190 Riverside St, #2A,
Portland, ME 04103

315 Main Street, #205,
Rockland, ME 04841

207-358-3706

info@evergreenyourhome.com